Last name origins & meanings:
- Finnish: topographic and ornamental name from aro ‘hard,
relatively infertile ground’ or ‘wet meadow’, ‘swamp’, found both as a
place name and as a surname throughout Finland. In many cases the
surname was adopted during the name conversion movement in the 19th
and early 20th centuries, especially in southern Finland.
- Spanish: habitational name, in some cases from Aro in Galicia, in
others probably from Haro in Rioja.
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